Global ESTOFS Pacific Region Storm Surge Model Guidance

Go to Total Water Level (including tides) forecasts

(Mouseover and click the area where you would like to view the current extratropical storm surge model guidance data)

Image map of ESTOFS Surge Model Guidance Areas Alaska Alaska W. Gulf of Alaska E. Gulf of Alaska Northwest N. California S. California West Hawaii

About Global ESTOFS Storm Surge Model Guidance

ESTOFS (Extratropical Surge and Tide Operational Forecast System) is a collaboration between the NOAA/NOS/Coast Survey Development Lab and NOAA/NCEP.

ESTOFS provides a second operational set of forecast guidance in addition to the ET-SURGE (ETSS) model. The community-based ADvanced CIRCulation (ADCIRC) model is used for ESTOFS and the Global Forecast System (GFS) model provides the forcing. The ESTOFS model is run on NOAA's WCOSS super computing system four times daily out to 180 hours producing numerical storm surge guidance for extratropical systems.

Global ESTOFS provides worldwide coverage. For more details, see the Global ESTOFS Service Change Notice.

Data Availability

DATA is available in GRIB and NetCDF formats via NOMADS:


NOAA information regarding storm surge terminology (pdf download).

Note on Tropical Cyclone Events

The Extra-Tropical Storm Surge information shown here should not be used for tropical cyclone events. For official storm surge information associated with tropical cyclones, please consult advisories and warnings issued by the National Hurricane Center.